CVE-2026-86734

Snipe-IT before 8.7.1 Denial of Service via Unbounded Note Field

Published Sep 8, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
Snipe-IT before 8.7.1 fails to validate the length of the note field in the POST /account/accept/{acceptance} endpoint, allowing authenticated users to submit unbounded input that reaches synchronous CommonMark rendering. Attackers can submit large note values to exhaust PHP worker CPU and cause denial of service through resource exhaustion in the markdown parsing pipeline.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Grokability
Grokability snipe-it
Vendors & Products Grokability
Grokability snipe-it
Type Values Removed Values Added
Description Snipe-IT before 8.7.1 fails to validate the length of the note field in the POST /account/accept/{acceptance} endpoint, allowing authenticated users to submit unbounded input that reaches synchronous CommonMark rendering. Attackers can submit large note values to exhaust PHP worker CPU and cause denial of service through resource exhaustion in the markdown parsing pipeline.
Title Snipe-IT before 8.7.1 Denial of Service via Unbounded Note Field
First Time appeared Snipeitapp
Snipeitapp snipe-it
Weaknesses CWE-400
CPEs cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:*
Vendors & Products Snipeitapp
Snipeitapp snipe-it
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 10, 2026, 3:02 PM
Reserved
Sep 8, 2026, 11:31 AM
Status
Analyzed
Published
Sep 8, 2026, 4:18 PM
Modified
Sep 10, 2026, 4:18 PM